The Editor puts every chord, barline, symbol, and text control on a single keyboard. Open it from a song: tap the pencil at the top right, then tap Edit. The same menu offers Duplicate and New Song, so you can experiment without touching the original.
 
Tap a measure and type a chord, or tap the ... quality button for the full list of chord types. The bottom row holds the barlines, the symbols (Coda, Segno, Fermata, END), the rehearsal letters, the repeat endings, and the T text button. The minus and plus arrows delete and insert space.
 
 
You can also use an external keyboard to type chords and use key commands.
 
For the full guide, see Edit a song on the iReal Pro website.